Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Discipline
Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 113851 - 113880 of 1114206

Full-Text Articles in Entire DC Network

Towards Public Spaces Compatible With Climatic Changes In Egyptian Societies. An Applied Study On Open Spaces In (Madinaty), Rasha Ahmed Reyad, Dalia Ali Awad Ahmed Reyad, Dalia Ali Awad Nov 2023

Towards Public Spaces Compatible With Climatic Changes In Egyptian Societies. An Applied Study On Open Spaces In (Madinaty), Rasha Ahmed Reyad, Dalia Ali Awad Ahmed Reyad, Dalia Ali Awad

Journal of Engineering Research

The (inability to both exist or work together) in the open city-based spaces (where there are lots of homes) communities with climate changes are due to the lack of a clear way(s) of doing things for this, as well as the increase in the costs of (where there are lots of homes) buildings and the increase in their maintenance expenses. The lack of interest in coordinating spaces led to the blurring of public, semi-public, and private properties, and affected the use of these areas. The lack of organization in the (where there are lots of homes) areas and the holy …


Stability Chart Of Generalized Bessel Equation, Mohamed Elborhamy Nov 2023

Stability Chart Of Generalized Bessel Equation, Mohamed Elborhamy

Journal of Engineering Research

Stability analysis, due to its importance in dynamic analysis of appliedsystems, becomes very widely topic in real-world problems associated with significant effects in all applications of engineering and appliedsciences. Several contributions have been done by various authors onstability analysis of autonomous and non-autonomous systems to obtain interesting and attractive results. In these aforementioned works, and sofar, the Lyapunov methods (first and second) become the main nerve togive suitable criteria that guaranteed the stability of the dynamicalsystems,In this article, it is aimed to look for a semi-analytical relation between the eigenvalue and the order of generalized Bessel differential equation using the …


Durability Performance Of One-Part Geopolymer Versus Two-Part Geopolymer And Portland Cement Mortar, Sara Mohamed Mostafa, Mariam Farouk Ghazy, Metwaly Abdelatty Nov 2023

Durability Performance Of One-Part Geopolymer Versus Two-Part Geopolymer And Portland Cement Mortar, Sara Mohamed Mostafa, Mariam Farouk Ghazy, Metwaly Abdelatty

Journal of Engineering Research

The investigations in the field of geopolymer binders indicated that this new material has a great potential to be an alternative to cement to reduce the carbon dioxide emissions. On the other hand, it was found that the traditional geopolymer has multiple defects, including the presence of viscous corrosive solutions. Researchers were interested in solving this problem and the traditional type was developed into one-part geopolymer and the need for solutions became in its composition and it became possible for this material to be an alternative to cement. But until now there are unexplained issues about one part geopolymers. In …


Utilization Of Recycled Construction And Demolition Waste In The Manufacture Of Prefabricated Wall Claddings To Achieve Sustainability, Omar Yousef, Eman Attia, Hesham Awad Nov 2023

Utilization Of Recycled Construction And Demolition Waste In The Manufacture Of Prefabricated Wall Claddings To Achieve Sustainability, Omar Yousef, Eman Attia, Hesham Awad

Journal of Engineering Research

The climate of Egypt is characterized by high temperatures. Clay bricks, the most common type of building bricks in Egypt, are one of the main reasons for increasing the heat gain of buildings. The absence of suitable environmental alternatives for clay bricks calls for an attempt to find and evaluate effective alternatives.This research aims to manufacture wall claddings that meet the environmental requirements and thermal comfort needs of buildings in Egypt through recycling construction and demolition waste (CDW). Multiple proposals featuring different mixtures of cement, sand, water and CDW (crushed concrete and crushed bricks) were tested to determine the most …


Computational Fluid Dynamics Study On A Solar Chimney With Different Ground Materials, Hagar Alm Eldin Mohamad, Medhat Elkelawy, Mohamed Ramon Nov 2023

Computational Fluid Dynamics Study On A Solar Chimney With Different Ground Materials, Hagar Alm Eldin Mohamad, Medhat Elkelawy, Mohamed Ramon

Journal of Engineering Research

The problem of energy source depletion with the restricted regulation about the emissions make the need for another alternative sours of energy is a worldwide demands. The solar chimney power plant (SCPP) is an optimistic solar energy technology that produces electrical power. In this paper, a 2D analytical study is offered to evaluate the working of the SCPPs’ performance with the varying ground material. Sand, concrete, asphalt, and saturated sand will be used as absorber materials in this study. The Numerical model was done with the realizable k-ɛ turbulence model and the discrete ordinates (DO) solar load model. The model's …


Slice Admission Control Based On Reinforcement Learning For 5g Networks, Mai Z. Ibrahim, Mohamed Talaat Fahim, Nada Elshennawy Nov 2023

Slice Admission Control Based On Reinforcement Learning For 5g Networks, Mai Z. Ibrahim, Mohamed Talaat Fahim, Nada Elshennawy

Journal of Engineering Research

Network slicing empowers service providers to deploy diverse network slice architectures within a shared physical infrastructure. This technology enables the provision of differentiated services that cater for specific Quality of Service (QoS) requirements of different use cases which need to be adequately supported in 5G networks. By leveraging Network Slicing, operators can effectively meet these diverse requirements and provide customized services to different tenants in a flexible and efficient manner. However, infrastructure providers face a challenging dilemma of the slice admission control regarding whether to accept or reject slice requests. From one perspective, they strive to optimize the utilization of …


Enhancing Fastslam 2.0 Performance Using A De Algorithm With Multi-Mutation Strategies, Hadeer Adel Attia, Mohamed Arafa, Mohamed Talaat Fahim Nov 2023

Enhancing Fastslam 2.0 Performance Using A De Algorithm With Multi-Mutation Strategies, Hadeer Adel Attia, Mohamed Arafa, Mohamed Talaat Fahim

Journal of Engineering Research

FastSLAM 2.0 is considered one of the popular approaches that utilizes a Rao-Blackwellized particle filter for solving simultaneous localization and mapping (SLAM) problems. It is computationally efficient, robust and can be used to handle large and complex environments. However, the conventional FastSLAM 2.0 algorithm is known to degenerate over time in terms of accuracy because of the particle depletion problem that arises in the resampling phase. In this work, we introduce an enhanced variant of the FastSLAM 2.0 algorithm based on an enhanced differential evolution (DE) algorithm with multi-mutation strategies to improve its performance and reduce the effect of the …


الفنادق الخضراء الذكية كآلية لدعم السياحة البيئية في مصر Smart Green Hotels As A Mechanism To Support Ecotourism In Egypt., Nesma Mohammed Abd El- Maksoud Nov 2023

الفنادق الخضراء الذكية كآلية لدعم السياحة البيئية في مصر Smart Green Hotels As A Mechanism To Support Ecotourism In Egypt., Nesma Mohammed Abd El- Maksoud

Journal of Engineering Research

تسعي المبادرة الوطنية للمشروعات الخضراء الذكية بالتزامن مع اهداف استراتيجية التنمية المستدامة لرؤية مصر 2030 الى الحفاظ على التوازن البيئي واستدامة النشاط السياحي والاثري.ويأتي البحث كدراسة تحليلية تطبيقية لتفعيل دور التقنيات الذكية بالفنادق الخضراء وتسليط الضوء على التوجهات والنظم الذكية ودورها في تطبيق التوجهات المعمارية الخضراء ومعايير النجمة الخضراء للفنادق والربط بينهما في اطار الرؤية المستقبلية المجتمعية لدعم السياحة البيئية في مصر.يتضمن البحث الدراسة الاستقرائية للاشتراطات والمعايير المصرية الخاصة بالفنادق البيئية والخضراء ومعايير تقييم المبادرة الوطنية للمشروعات الخضراء الذكية على سبيل المثال ( المكون الأخضر المستدام والمكون التكنولوجي الذكي) بالإضافة الى معايير نظام تقييم النجمة الخضراء يليها الدراسة التحليلية لتوجهات …


Blockchain For Healthcare Systems: Concepts, Applications, Challenges, And Future Trends, Mostafa Eltabakh, Mohamed Nasr, Emad Abdelrahman, Roayat Abdelfatah Nov 2023

Blockchain For Healthcare Systems: Concepts, Applications, Challenges, And Future Trends, Mostafa Eltabakh, Mohamed Nasr, Emad Abdelrahman, Roayat Abdelfatah

Journal of Engineering Research

-Electronic medical records are digital documents that contain medical data pertaining to a patient's medical care. Because electronic health records are regularly exchanged amongst stakeholders in healthcare, they are prone to a range of challenges such as data misuse and loss of privacy and security. These challenges may be solved by utilizing blockchain-based technologies in the healthcare area. Blockchain is a decentralized innovative technology that can completely transform, reshape, and reinvent how data is stored and processed in the healthcare sector. In this article, we offer an overview of the blockchain, its formation, its types, and how it works. We …


Properties Of Cement Composites Utilizing Of Bentonite: A Review, Metwally A. A. Abd Elaty, Wasiem R. Azzam, Ahmed Gamal Eldesoky Nov 2023

Properties Of Cement Composites Utilizing Of Bentonite: A Review, Metwally A. A. Abd Elaty, Wasiem R. Azzam, Ahmed Gamal Eldesoky

Journal of Engineering Research

The use of bentonite clay slurries in civil and geotechnical engineering dates back to Veder's pioneering work in 1953. Since then, bentonite has been used for various applications such as the construction of bored piles and diaphragm walls. Plastic concrete walls also require sufficient strength and modulus to adapt to the surrounding environment, and the characteristics and different forms of bentonite commercially available were reviewed in this paper.This paper reviews the properties and applications of bentonite, including its use in cement-bentonite composites for remedial cut-off wall construction. Cement-bentonite grouts offer advantages over bentonite grouts in terms of ease of use …


Investigating The Microstructure And Mechanical Properties Of Self-Curing Concrete Exposed To Elevated Temperature, Noha Elwakkad Nov 2023

Investigating The Microstructure And Mechanical Properties Of Self-Curing Concrete Exposed To Elevated Temperature, Noha Elwakkad

Journal of Engineering Research

This experimental study examines the mechanical and microstructure properties of self-curing concrete (SCUC) containing polyethylene glycol (PEG400) when subjected to high temperatures (600°C). The experimental research used two types of concrete mixtures, which were produced to indicate the effects of self-curing concrete using PEG400 that were added in three ratios (i.e., 0.3 %, 0.5% and 1%) by volume of cement. The parameters investigated in this research are heating period (1h and 2h), curing methods (self-curing SCU, and conventional-curing WC), concrete type (self-compact concrete SCC, and ordinary concrete OC), and cooling action (air and water). Compressive, tensile, flexural strengths and microstructural …


Shear Capacity Of Fiber Reinforced Concrete (Frc) Beams With Openings Strengthened Using Various Systems And Materials, Hind Mohamed, A. H. Abdel-Kareem, Mohamed H. Makhlouf Nov 2023

Shear Capacity Of Fiber Reinforced Concrete (Frc) Beams With Openings Strengthened Using Various Systems And Materials, Hind Mohamed, A. H. Abdel-Kareem, Mohamed H. Makhlouf

Journal of Engineering Research

This study presents the findings of an experiment conducted on eleven identical fiber-reinforced concrete beams with two large rectangular openings strategically positioned at the maximum shear zone. The primary objective of the experiment was to compare various strengthening techniques for these beams. The beams were subjected to two-point loading while supported in a simply supported manner. Two reference specimens were included: a solid control beam and a control beam with two large openings. The remaining beams were externally strengthened using a range of methods around the openings, including vertical and inclined schemes. Strengthening materials such as GFRP sheets, steel plates, …


Enhancing Punching Shear Capacity Of Flat Slabs With Hidden Capitals Made Of Strain Hardening Cementitious Composite (Shcc), ‪Mahmoud ‪ Ahmed Abdelaziz‬‏, Nesreen Kassem, Mohamed Hussien Nov 2023

Enhancing Punching Shear Capacity Of Flat Slabs With Hidden Capitals Made Of Strain Hardening Cementitious Composite (Shcc), ‪Mahmoud ‪ Ahmed Abdelaziz‬‏, Nesreen Kassem, Mohamed Hussien

Journal of Engineering Research

This paper focuses on studding the effect of using hidden capitals made of strain hardening cementitious composite (SHCC) to improve the punching shear resistance at slab-column connections. Ten 160 mm thick slabs with identical reinforcement and geometry were constructed in this investigation. Two control specimens, one loaded at the center of the column and the second loaded with eccentricity of 100mm. The other eight specimens were strengthened with SHCC hidden capitals to study the effect of the hidden capital’s thickness, area, fiber content ratio in the SHCC, using drop, and load eccentricity on the punching shear behavior. The results showed …


Outdoor Night Architectural Lighting Art As A Doorway For Heritage Values Rooting And Environmental Conservation فن الإضاءة المعمارية الليلية كمدخل لتأصيل القيم التراثية للمباني ذات القيمة والحفاظ على البيئة المحيطة, Mai Wahba Madkour Nov 2023

Outdoor Night Architectural Lighting Art As A Doorway For Heritage Values Rooting And Environmental Conservation فن الإضاءة المعمارية الليلية كمدخل لتأصيل القيم التراثية للمباني ذات القيمة والحفاظ على البيئة المحيطة, Mai Wahba Madkour

Journal of Engineering Research

يمكن استخدام فن الإضاءة المعمارية عند تجديد وإعادة إحياء المباني ذات القيمة التراثية للمساهمة في تعزيز قيمها التاريخية والثقافية والبصرية والتراثية. حيث أن لكل مبنى تراثي احتياجاته ومتطلباته الخاصة التي يجب أخذها في الاعتبار عند تجديه وإعادة تأهيله، يهدف البحث بشكل رئيسي الرئيسي إلى محاولة الوصول لإطارعام عن كيفية تطبيق استخدام فن الإضاءة المعمارية في إعادة إحياء المباني ذات القيمة التراثية او المباني التاريخية في الدول العربية وزيادة وعي المجتمع بأهمية تلك المباني للتأكيد على تأصيل قيمها التراثية.يطرح البحث سؤالًا مهمًا "هل يمكن من خلال استخدام الإضاءة المعمارية الليلية للمباني أو المناطق ذات القيمة التراثية أو التاريخية تأصيل قيمها التراثية …


منظومة رفع كفاءة مراكز المدن الجديدة وفقا للاتجاه العالمي المعاصر A System To Promote The Efficiency Of New City Centers According To The Contemporary Global Trend, Ayatullrahman Sayed Khallaf Nov 2023

منظومة رفع كفاءة مراكز المدن الجديدة وفقا للاتجاه العالمي المعاصر A System To Promote The Efficiency Of New City Centers According To The Contemporary Global Trend, Ayatullrahman Sayed Khallaf

Journal of Engineering Research

نظرا لما تسببه العولمة من تغيرات في المدن اليوم حيث أصبحت في حاله تغير مستمر لمواكبه الاحتياجات العمرانية الجديدة، ويشمل ذلك المدن الجديدة المخططة أيضا ،وبتالي فان هذه التطورات تؤثر على مركز المدينة باعتباره اهم المناطق بها والذي تتركز فيه اهم الأنشطة ، لذلك فان التطوير والتجديد العمراني لمراكز المدن اصبح واقع عالمي ومحلي يمكن رصده بسهولة من خلال الباحثين والمعنيين بالرصد العمراني .ولذلك كان اهتمام هذه الدراسة بالتركيز على تحسين ورفع كفاءة البيئة العمرانية لمركز المدينة من خلال استخدام اهم الآيات التجديد العمراني التي تحقق اهم معايير الكفاءة لمركز المدينة .ويتمثل الهدف من الدراسة في الخروج بمنظومة رفع كفاءة …


Potential Of Static, Kinematic, And Rtk In Open Sky Using Gps Only And Gps + Glonass Signals, Nasr Mohamady Saba, Nasr M Saba Nov 2023

Potential Of Static, Kinematic, And Rtk In Open Sky Using Gps Only And Gps + Glonass Signals, Nasr Mohamady Saba, Nasr M Saba

Journal of Engineering Research

ABSTRACT: It is now simple to use Global Navigation Satellite System (GNSS) anyplace due to the rapid developments and variety of GNSS satellite techniques. Several satellite systems, including GPS, GLONASS, BIUDO, and GALILEO, are widely available and used. The Differential Global Navigation Satellite System (DGNSS) is being utilized for many different applications, particularly those involving surveying and mapping. For establishing control points (Cps) in the open sky with moderate accuracy, it may be helpful to compare the usage of post-processing methods including static and kinematic also real-time kinematic (RTK) for position accuracy to differentiate their accuracies. The comparison depends on …


Improving The Thermal Comfort Of Industrial Building Using Insulation Materials, Hosam Amr, Androw Khairy Nov 2023

Improving The Thermal Comfort Of Industrial Building Using Insulation Materials, Hosam Amr, Androw Khairy

Journal of Engineering Research

industrial buildings are one of the larges used t worldwide, and every day it grows noticeably in many different forms of projects so , the introduction of insulation materials was very essential, and their development for enhancing a variety of parameters such as thermal comfort inside the building which became one of the very important aspects in industrial buildings. Design of any industrial building should be to the lowest cost keeping in consideration importance of thermal comfort and its contribution in the productivity improvement of the workers as well as the administrative employee as well as reducing the high costs …


Influence Of Deep Excavation On Behavior Of Adjacent Single Pile: Effect Of Pile Location, Mostafa Ibrahim Lotfy, Marwan Shahin, Ahmed Farouk Nov 2023

Influence Of Deep Excavation On Behavior Of Adjacent Single Pile: Effect Of Pile Location, Mostafa Ibrahim Lotfy, Marwan Shahin, Ahmed Farouk

Journal of Engineering Research

Even when located atop piles, deep excavations might result in Settlement and harm to nearby buildings. This work aims to investigate single-pile reactions to deep-braced excavation-induced soil movement in soft clay with a sand covering. The main goal of the experiment is to determine how a vertical single pile responds to produced axial force, lateral deflection, induced bending moment, and pile settlement. The pile's diameter (dp) is 5 meters, and its embedded length (Lp) is 22 meters. The pile horizontally from the diaphragm wall is situated 3.75 meters (.25 He). The pile was simulated using the "Embedded pile" structural element. …


Flow Pattern And Wave Reflection In Front Breakwaters During The Scour Development: A Review, Rana Nabil Zedan, Ebrahim Rashwan, Hewida Mohammed Omara Nov 2023

Flow Pattern And Wave Reflection In Front Breakwaters During The Scour Development: A Review, Rana Nabil Zedan, Ebrahim Rashwan, Hewida Mohammed Omara

Journal of Engineering Research

Abstract- Scour induced by waves and in combined wave-current is the main cause of coastal breakwater failure as a result of a lack of its efficiency. The maximum scours depths need to be estimated for the scours of breakwater foundations. Mechanisms of local scour and predictions of its maximum depths have been studied extensively for many years. Despite the complexity of the scour process, a lot of satisfying results and processes have been achieved by many investigators. So, this review focus on the effect of changing flow pattern and inducing wave reflection in front of vertical breakwaters on scour processes. …


Improving The Environmental And Design Performance Of Building Facades Using “Artificial Intelligence”, Nervana Osama Hanafy Nov 2023

Improving The Environmental And Design Performance Of Building Facades Using “Artificial Intelligence”, Nervana Osama Hanafy

Journal of Engineering Research

The construction sector has changed thanks to the use of artificial intelligence in architectural design. To investigate abstract conceptual concepts and produce an infinite number of design ideas based on mathematically determined criteria, AI offers a wide variety of computational methodologies. An exploratory examination of the development of AI in architectural design is presented in this paper. Since its inception as a tool for functional optimization, Artificial Intelligence has evolved into an unmatched source of design inspiration. The mechanism technology is needed to deliver the best lighting possible, depending on the design requirements. The following steps are taken during the …


Analytical Study Of Lipped Cold-Formed Steel Sections With Edge-Stiffened Hole Subjected To Axial Compression Load, Shrouck Mohammed Fouad, Mahmoud H. El-Boghdadi, Nashwa Mohamed Yossef Nov 2023

Analytical Study Of Lipped Cold-Formed Steel Sections With Edge-Stiffened Hole Subjected To Axial Compression Load, Shrouck Mohammed Fouad, Mahmoud H. El-Boghdadi, Nashwa Mohamed Yossef

Journal of Engineering Research

Cold-formed steel (CFS) have been widely used in different structural systems in residential and non-residential construction, especially roof structures due to many advantages. Firstly, no heat is used to form the sections unlike hot-rolled steel. Secondly, several steel thicknesses are offered to accommodate a wide range of structural and non-structural purposes. Researchers have recently searched in the usage of CFS sections, and their research showed an improvement in stiffness and strength of these sections. Therefore, the purpose of this search is to analyze and conduct the behaviour of lipped single and double channel back-to-back CFS sections with edge-stiffened hole. The …


Utilization Of Ammonia Hydroxide /Diesel Fuel Blends In Partially Premixed Charge Compression Ignition (Ppcci) Engine: A Technical Review, Medhat Elkelawy, Hagar Alm Eldin Mohamad, Mohamed Samadony, Abdallah Salem Abdalhadi Nov 2023

Utilization Of Ammonia Hydroxide /Diesel Fuel Blends In Partially Premixed Charge Compression Ignition (Ppcci) Engine: A Technical Review, Medhat Elkelawy, Hagar Alm Eldin Mohamad, Mohamed Samadony, Abdallah Salem Abdalhadi

Journal of Engineering Research

Almost 50% of new car registrations in Europe at the turn of the century were diesel. However, reports of harmful NOx emissions have been corroborated by diesel emissions scandals, which have sent the diesel engine market into a tailspin and raised concerns about the diesel engine's long-term viability. Developing of diesel cars with low NOx emissions has been announced by major automakers. Modern posttreatment systems can be installed, and they will result in decreased NOx emissions for heavy-duty, marine, or power production applications. Despite attempts to lower NOx emissions, the automobile, marine, and power generation industries must decarbonize if we …


Finite Element Modeling And Behavior Analysis Of Axially Comprised Circular Dual Tube Columns Filled With Concrete, Ahmed Ayman Mostafa, Ahmed Mahmoud El Hadidy, Nashwa Mohamed Yossef Nov 2023

Finite Element Modeling And Behavior Analysis Of Axially Comprised Circular Dual Tube Columns Filled With Concrete, Ahmed Ayman Mostafa, Ahmed Mahmoud El Hadidy, Nashwa Mohamed Yossef

Journal of Engineering Research

CFDST is an abbreviation that stands for concrete-filled columns that have a dual steel tube. In the past few years, there has been debate on the possibility of using these types of columns. As a consequence of this, the objective of this work is to develop and validate material modeling approaches that are considered to be suitable for use with concrete-filled columns (CFT) that have been exposed to axial compression loads. Using the ABAQUS program as the nonlinear finite element, the suggested models are evaluated by doing a comparison study with the experimental data. This analysis is carried out in …


Architectural Design Of School Buildings In The View Of Concepts And Applications Of Artificial Intelligence, Nervana Osama Hanafy Nov 2023

Architectural Design Of School Buildings In The View Of Concepts And Applications Of Artificial Intelligence, Nervana Osama Hanafy

Journal of Engineering Research

An enormous amount of data is usually needed for the design in the early phases of projects. Right now, computational tools are accessible to help the designer use data and information quickly and effectively to do this. Artificial intelligence, or AI,is a recent field of study that uses, analyzes, and manipulates data to complete tasks and reach goals. Modeling, anomaly detection, association, and grouping are just a few of the many sub-fields that make up the current state of AI, The goal of the current study is to make clear the benefits of using AI into architectural design and to …


Experimental And Theoretical Study On Reverse Osmosis Based Water Desalination, Amr M. Elbrol, Elsayed Elsaid, Yaser Elsamadony, Farid A. Hammad, Khaled Khodary Ismaeil Nov 2023

Experimental And Theoretical Study On Reverse Osmosis Based Water Desalination, Amr M. Elbrol, Elsayed Elsaid, Yaser Elsamadony, Farid A. Hammad, Khaled Khodary Ismaeil

Journal of Engineering Research

Freshwater availability has dropped due to population growth, inefficient use, climate change, and industrial pollution. Although the reverse osmosis, RO, system is one of the most effective desalination technologies worldwide, spiral wound membranes still need deeper theoretical and experimental investigations for removing salts under low energy consumption. In this study, the performance of a commercial pilot RO plant that utilizes a spiral wound seawater membrane module is experimentally investigated under a wide range of operating parameters. In addition, a Mathematical model is developed based on the solution-diffusion model theory and then solved using an in-house MATLAB algorithm to analyze its …


Integrating Environmental Control And Architectural Design: A Coordinated Teaching Framework That Uses Multiple Strategies To Enhance Student Skills, Mahmoud Desouki, Hesham Awad Nov 2023

Integrating Environmental Control And Architectural Design: A Coordinated Teaching Framework That Uses Multiple Strategies To Enhance Student Skills, Mahmoud Desouki, Hesham Awad

Journal of Engineering Research

This paper aimed at formulating a teaching framework for environmental control to develop students' skills. It emphasizes the importance of multiple strategies into architectural education and proposes a coordinated approach between three courses’: environmental control, Islamic architecture history, and architectural design. It reviews pedagogical approaches in architectural education to design a framework to environmental control. That framework achieves the course outcomes for the higher education ministry syllabus and goes in line with both Egyptian and American quality standards. The framework involves several activities, including lectures that introduce the theoretical background, construction of physical models, teamwork presentations, use of simulation software, …


The Thermal And Energy Performance Comparison Of Extruded Polystyrene Foam Insulation For An Apartment Building In Different Climate Zones,Egypt, Seham Ali Elmozy, Youssef Elkhayat, Engi Eldarwish Nov 2023

The Thermal And Energy Performance Comparison Of Extruded Polystyrene Foam Insulation For An Apartment Building In Different Climate Zones,Egypt, Seham Ali Elmozy, Youssef Elkhayat, Engi Eldarwish

Journal of Engineering Research

The energy sector continually grapples with formidable challenges, particularly in nations characterized by burgeoning populations, where the construction industry faces mounting pressure to curtail energy consumption. Among the influential factors impacting a building's energy usage and environmental building performance, thermal insulation materials stand out prominently. Consequently, this research selected a residential building, situated in diverse climatic conditions, to assess the implications of applying thermal insulation materials to the building's envelope on indoor thermal comfort and energy consumption, both in the current period and in the context of climate changes. Utilizing Design Builder software, an apartment was simulated for three major …


"دور الهندسة القيمية في التحسين الوظيفي لأحد الآبنية التعليمية بمصر" " The Role Of Value Engineering In The Functional Improvement Of An Educational Building In Egypt ", Marwa Kamar Nov 2023

"دور الهندسة القيمية في التحسين الوظيفي لأحد الآبنية التعليمية بمصر" " The Role Of Value Engineering In The Functional Improvement Of An Educational Building In Egypt ", Marwa Kamar

Journal of Engineering Research

يتم تطبيق منهجية الهندسة القيمية (Value Engineering) بغرض تحديد نطاق المشروع بصورة أكثر دقة بهدف معرفة دور الهندسة القيمية في التحسين الوظيفي في أحد الآبنية التعليمية بمصر بغرض رفع الكفاءة الوظيفية للمشروع وخفض التكاليف والمرونة في التنفيذ، توفير الوقت، التحسين البيئي وحل المشكلات التي تتتعلق بمشاريع التشيد والبناء بصفة عامة، تؤثر نتائج تطبيق الهندسة القيمية في التحسين الوظيفي للآبنية التعليمية بمصر في الدراسة الحالية بشكل إيجابي وتساعد فى تطويرالتصميم الحالي بغرض الوصول الي افصل البدائل التصميمة من حيث تحسين وتنظيم العلاقات الوظيفية مع التحسين البيئي بين عناصر المشروع، التوفير في مساحات فراغات المشروع وفق الاحتياجات المطلوبة حيث يتم تقليل مساحات …


Impact Of Utilizing A Diesel/Ammonia Hydroxide Dual Fuel On Diesel Engines Performance And Emissions Characteristics, Medhat Elkelawy, Hagar Alm Eldin Mohamad, Mohamed Samadony, Abdallah Salem Abdalhadi Nov 2023

Impact Of Utilizing A Diesel/Ammonia Hydroxide Dual Fuel On Diesel Engines Performance And Emissions Characteristics, Medhat Elkelawy, Hagar Alm Eldin Mohamad, Mohamed Samadony, Abdallah Salem Abdalhadi

Journal of Engineering Research

The problem of global warming and environmentally polluting emissions has become the call of the times. To solve this problem, the trend to change or share new types of fuel has become a new way to solve this problem. One of the most promising types of fuel in the future is ammonia, as it is a carbon-free fuel, unlike traditional fossil fuels. Because of the danger of using ammonia as a gas, it was safer to use ammonia as a liquid. In this study, ammonia hydroxide was used as a proportion with diesel fuel in a PCCI diesel engine. The …


Stability Chart Of Generalized Bessel Equation, Mohamed Elborhamy Nov 2023

Stability Chart Of Generalized Bessel Equation, Mohamed Elborhamy

Journal of Engineering Research

Stability analysis, due to its importance in dynamic analysis of appliedsystems, becomes very widely topic in real-world problems associated with significant effects in all applications of engineering and appliedsciences. Several contributions have been done by various authors onstability analysis of autonomous and non-autonomous systems to obtain interesting and attractive results. In these aforementioned works, and sofar, the Lyapunov methods (first and second) become the main nerve togive suitable criteria that guaranteed the stability of the dynamicalsystems,In this article, it is aimed to look for a semi-analytical relation between the eigenvalue and the order of generalized Bessel differential equation using the …